Loose-leaf binder



A. ROSENBERG.

LOOSE LEAF BINDER. APPLICATION FILED JAN. 2, 1917.

1,37 1,646; Patented Mar. 15, 1921.

uNrruD STATES [PATENT OFFICE.

LOOSE-'LEAF 'BINDER'.

Specification of Letters Patent.

Patented Mar. 15, 1921.

.Appia-anonv sied January 2,1917. serial no. 140,260.

YTo all 107mm t may concern.'

Be it known that l, ALBERT BosnNnne, a citizen of the United Statesresiding at Baltimorecity, in .the State or Maryland, have invented a`new and useful limprovement in Loose-Leaf Binders, of which thefollowing is a speeilication.

My invention relates to leaf binders for leaves of books, periodicals,drawings, specilications, manuscripts, and the like; the objects Vofwhich are to provide a means foil ready access to the leaves when heldby my binder; 2nd, to enable the same to be clasped at both ends whenout' of use; 3rd to permit the leaves to be increased orv diminished innumbers at'will'; 4th, to enable the user to move the front and backofthe binder out of way when using the leaves; 5th, to

provide a movable across the face of the' leaves or cover structures;6th, to provide means for lslmulta-neously moving the cover structures;'7th,to provide means for simultaneously moving the tension device ,andthe cover structures; 8th, to provide detachable tension device for theouter parts of the leaves.

I attain these objects by the devices illustrated in the accompanyingdrawings in whichj j Y Figure l shows'my leaf binder attached toa bundleof leaves.

Fig. 2shows theouter bar of my binder in sectional view.

- pivot.

Fig. 3 shows a sectional VView of the' nut or cap with which the in theleaves.v A

Fig. .et illustrates aA longitudinal View of the pin or post.

Fig. 5 illustrates a pin or post is secured viewof aV stop to preventthe extensible cover structure fromV eX- tending beyond a fixed limit.

Fig. 6 illustrates a sectional view of a covered tension device-forsecuring and operating the front and back cover structures of myleaf'bind'er simultaneously. Fig. '7 is a longitudinal section of partsof theV coverVV structure' and its A detachable tension device with theend of the latter shown passing through Vthe orifice (in the head of thepivot. y 4 Q r Fig. 8 is a sectional view of the tubular Fig. 9 is asectional view of a solid pivot. Referring' to the drawings, the numeral1 designates aseries of leaves, on the faces of which both front andback, are attached the movable across the face of the leaves andadjustable cover structures, enabling the leaf binder to be eitherincreased or diminished in size according to the area of the leaves, bymoving the cover structures across the faces of the leaves; or, movedout of way of the user of the book at will; as illustrated on the faceof the top sheet or leaf. The binder comprises said adjustable covershaving a bar 18 on the front and 11 on the back, all held together bysuitable post-s and nuts 15, 16, 17 and to these bars are pivoted themovably adjustable parts of the cover structures 23, 7, 9, 20 by thepivots 12 and 19, the parts 23, 7, 9, 20 being held together by thepivots 8 and 21.

fit the outer end of these movably adjustable parts are pivoted the bars26 by the pivots24 and 6 andato the outer ends are detacliably securedthe springs t, the tension devices for clamping the loose ends of theleaves and the movable cover structures.

@n the adjustable parte of the movable cover structures are arrangedsuitable stops 10 and to limit the extensibility of the movable andadjustable cover structures.

A These stops may be placed at any suitable point on my leaf binder orupon the leaves, and stops 10 and 22 are provided with a head 22 a bodyportion 32 having a reduced end 8l and a shoulder 33 the reduced portion34 being inserted in and secured tothe movable parts 9 and 23 of themovable cover structures;

The tension device shown in modified form in Fig.' 6 may be secured tothe movable mated parts 23-'.7 and 26 of the cover' structure by anvsuitable means such as ig, j, or made detachable b v I .f hook made bybending the end 36 in a similar manner to the spiral spring end 25 shownin Fig. T. extending through the orilice'2-l of the pivot 24. Y

This end 86 is made integra-l with the shoulder-85 of the casing orbarrel 4 which covers the spring Kl 'and vin which is inserted theplunger stern provided With a flange 5 operating against the spring 4held in the casing 4 by the detachable nut 37.

The plunger 5 vis anged at 38 and is secured to the mate of the coverstructures by 5.

In Fig. l, the post 30 is shown with a round head 29 and a threadedportion 31 at its other end, and is used to secure the ad- Y j'ustablymovable cover structures to the leaves ol the book aswell as to bind theleaves of the book together.

rio

In Fig. 3, the nutor cap is shown withl a round head 15 and providedwithV key yTand Fig. 9 shows the ordinary flat head'12i oipivot 12.

It will bel seen that by pressing the tension i device 4 at each side ofthe parts of vthe adj ustably movable cover structures, the saidV coverstructures will collapse by moving the outer bars 26 toward the otherend bars 18 and 11, thereby leaving` the leaves free to be used orexamined or searched o nboth of their aces5 The barf26 is preferablymade with a sloping surface 2T and rounded jon its edges 2S to prevent'cutting the leaves as they are olded'back vover said bar. Y Itniay'be'desirable to-cover they adjust-` able parts Voi vthe movable jcover Ystructures with some suitable flexible material, or an accordionplaited material, lsuch as made ijomcloth, paper, rubber, leather,fiber, vulcanized liber, etc., but it is not thought necessary toillustrate this in the drawings.

vrIt will be s'een that the tensionV device 4 is adjustable and movablewith the movable members of the cover str ctures.

I do not care to limit inyselfto any par-.

' ticular construction o either movable cover structures; or to anyparticular form of ad- ]ustably movable cover structures; or the i'materials of which they may bemade, metal claim is,-A

or not. Y

Having described my invention, what I V1. A binder for leaves or thelike comprising abmding means, means for securingth'e binding means tothe leaves, and a collapsifble cover structure secured at one'end tothebinding means in alineinent with said binding means and adapted tobecontracted in `its original position to give access to the leaves andcapable of being expanded telit,V

the leaves. Y

2. A binder for leaves or the like, comprising means for binding theleaves, and opposing ycover structures capable of being movedacrossthefaee of the leaves.l

withthem and adapted tobe contracted in its original position to giveaccess to theV jleaves -as well as to be expanded to litthe leaves. v v

4. ik binder for leaves yorthe like 'come prising clamping bars, bindingposts detachkably securing said bars in clamping position and forimpaling the leaves, a collapsible cover structure secured at one end toand in alineinent with said bars and adapted toV be contracted and'expanded, andtension devices connecting the free ends of said coverstructures.

5. A binder for leaves or the like VVcomprisiiig clamping bars,bindingposts detachably securing said bars in clamping position and acollapsible lazy tongscover struc ture'secured to said barsin alinernentwith pvanded.

them and adaptedto be contracted or eX*-V 6. binder for leaves or the'like, com-y opposing cover structurescapable of being prisingmeans forbinding thefleaves yand Y moved across the faceV oftlie'leaves with` a'Y jointly Y compressing the means for` securing the cover structuresover Vthe leaves. Y f

vSLA 'binder for leaves or the like, coinprising means 'for binding theleaves and 'opposing cover structures capable of Ybeing moved across theface of the leavesfwith means i"or simultaneously moving Vvsaid coverstructures. v Y

10. A binder for leaves V or the like, coinprising means for bindingtheleaves and a cover structure capable" of being' moved Y across the faceof the leaves with a ytension device simultaneously -inovable with saidcover structure.Y Q

Y 1 1.v A binder` for'leaves or thel like,1comprising means for binding`the leaves, and av V'cover structure-cap`able Voli' being moved acrossthe `face of the leaves for covering the leaves when closed and adetachable tension device for holding-'said cover structure to theleaves. Y

12. Acbiiiderv forleavesorthe like, com-Y prising meansV for binding theleaves andV jointly covenstructures capable of being Amoved acrossftheface of Vthe leaves for covering the leavesfwhen closed Vand a detach-Vabletension device forjointly compressing the cover structures' .-V

v'Tovvhich I alix mysignature in the preis-VA ence of two Witnesses this2nd day 'of J annary,` nineteen hundred and seventeen.

1 ALBERT ROSENBERG. Witnesses: Y

` vA. I-I. RiiirscHNEinER,

IizviivGB. THAWLEY..

